<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>媒体查询演示</title>
		<style type="text/css">
			@media only screen and (max-width:350px ) {
				#ad1{
					transform: scale(0.4);
					transition-delay: 0;
					transition-duration: 3s;
					transition-property: all;
					transition-timing-function: linear;
				}
			}
			@media only screen and (min-width:400px ) {
				#ad1{
					transform: scale(1);
					transition-delay: 0;
					transition-duration: 3s;
					transition-property: all;
					transition-timing-function: linear;
				}
			}
		
			
		</style>
	</head>
	<body>
		<img src="delicious.png" id="ad1"/>
	</body>
</html>
